package com.itheima.web;

import com.itheima.pojo.User;
import com.itheima.service.UserService;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.*;
import java.io.IOException;

@WebServlet("/registerServlet")
public class RegisterServlet extends HttpServlet {

    private UserService service = new UserService();
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //1.获取用户名和密码数据
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        User user = new User();
        user.setUsername(username);
        user.setPassword(password);
        //获取用户输入的验证码
        String checkCode = request.getParameter("checkCode");
        //取session获取生成的验证码
        HttpSession session = request.getSession();
        String checkCodeGen = (String) session.getAttribute("checkCodeGen");

        //校验验证码
        if(!checkCodeGen.equalsIgnoreCase(checkCode)){
            //不允许注册
            //注册失败,跳转到注册界面
            request.setAttribute("register_msg", "验证码错误");
            request.getRequestDispatcher("/register.jsp").forward(request, response);
            return;
        }
        //2.调用service完成注册
        boolean flag = service.register(user);
        //3.判断注册成功与否
        if (flag) {
            //注册成功，跳转到登录页面
            request.setAttribute("register_msg", "注册成功，请登录");
            request.getRequestDispatcher("/login.jsp").forward(request, response);
        } else {
            //注册失败,跳转到注册界面
            request.setAttribute("register_msg", "用户名已存在");
            request.getRequestDispatcher("/register.jsp").forward(request, response);
        }
    }
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        this.doGet(request, response);
    }
}
